On the LE, the Ironhide PF is just complete shit. From the design of the way the sensors/switches work along with the horrid gate. The Megatron trough is pretty high on the shit list too, another horrible design. I can see why some people might enjoy the Pro version more. I think this is a good rule of thumb for the most enjoyment out of a Stern pin, the less mechs, the better. It just really blows when you can't even dial in a game properly because of such horribly designed mechs.